Updated README.md

Merge pull request #14 from OliFramework/beta-1.8.0

Oli Beta 1.8.0 development update

Merge pull request #4 from OliFramework/beta-1.7.2

Oli Beta 1.7.2 development (bugfix)

Merge pull request #3 from OliFramework/beta-1.7.1

Oli Beta 1.7.1 development

Updated README.md file

Added How to get started wiki page link

Merge pull request #1 from OliFramework/oli-alpha

Oli Alpha 1.0 development